Band sawing-machine.



Patentwl Nov. 26, 1918.

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jwowm F. F: RUDY.

BAND SAWlNG MACHlNE.

APPLICAYION FILED lUNE 2. 191'? Patented Nov. 26, 1918.

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F. F. RUDY.

BAND SAWING MACHINE.

APPLICATION FILED mu: 2. 1911.

Patented Nov. 26, 1918.

5 SHEETSSHEEI 3.

F. F. RUDY.

BAND SAWING MACHINE.

APPLICATION mm JUNE 2. 1917.

5 SHEETS-SHEEI 4- Patnted Nov, 26, 1918.

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F. F.,RUDY.

BAND SAWING MACHINE.

APPLICATION FILED JUNE 2. m1.

1 ,285,801 Patented Nov. 26, 1918.

5 SHEETS-*SHEET 5.

56y. m Qxm in: noun: "in: m. rumurna. vuumaum. n cy UNITED STATES PATENT canton.

FOSTER F. RUDY, 0F PARKERSBURG, WEST VIRGINIA, ASSIGNOR TO THE PARKERSBURG RIG & REEL COMPANY, OF PARKERSBURG, WEST VIRGINIA, A CORPORATION OF WEST VIRGINIA.

Specification of Letters Patent. Pateni gfl N0 26, 1918 Application filed June 2, 1917. Serial ivo. 172,502.

To all whom it may concern:

Be it known that I, FOSTER F. RUDY, a citizen of the United States, residing at Parkersburg, in the county of Wood and State of West Virginia, have invented certain new and useful Improvements in Band Sawing-Machines, of which the following is a specification.

My invention relates to improvements in band sawing machines, adapted for sawing boards into longitudinal curved strips, while not necessarily restricted to this use.

An important object of the invention is to provide means for advancing a plurality of boards, in an expeditious manner, to a plurality of band saws, arranged upon opposite sides of the boards, whereby both edges of the boards are more or less simultaneously cut into the desired shape.

A further object of the invention is to provide a rotatable carria e, traveling in proximity to a band saw or laand saws, having means for clamping the board or boards thereto.

A further object of the invention is to provide means whereby a plurality of carriages of different sizes may be used in connection with the band sawing machine.

A further object of the invention is to provide simple, reliable and adjustable means for supporting the carriages of difierent sizes or diameters.

Other objects and advantages of the invention will be apparent during the course of the following description.

In the accompanying drawings forming a part of this specification and in which like numerals are employed to designate like parts throughout the same,

Figure 1 is an elevation of the forward side of apparatus embodying my invention,

Fig. 2 is a similar view of the opposite or rear side of the apparatus.

Fig. 3 is a plan view of the same,

Fig. 4.- is-an enlarged plan view of a portion of the carriage, parts being broken away, together with driving means and guide means,

Fig. 5 is a detail horizontal sectional view taken on line 5, of Fig. 2,

Fig. 6 is an enlarged side elevation of the upper end of the driving means for the carriage, the carriage being shown in transverse section, I

Fig. 7 is a detail vertical section taken on line 77 of Fig. 2,

Fig. Sis a fragmentary plan view of the annular carriage, showing clamps arranged thereon,

Fig. 9 is an enlarged plan view of a clamp,

Fig. 10 is an end elevation of the same,

Fig. 11 is an enlarged plan view of a coacting clamp,

Fig. 12 is a longitudinal sectional View taken on line 1212 of Fig. 11, and,

Fig. 13 is an enlarged transverse section through the carriage.

In the drawings, wherein for the purpose of illustration is shown a preferred embodiment of my invention, the numeral 15 designates a stationary base upon which are mounted frames 16 and 17 of band sawing machines. The frame 16 is clamped or rigidly secured to the base 15, while the frame 17 is provided at its lower end with bolts 18,

rigidly secured thereto and adapted'to operate within elongated slots 19. The frame 17 is adapted to be shifted longitudinally of the base 15 toward and away from the frame 16 by means of a rod 20, having screw-threaded engagement therewith at 21. This rod is swiveled within a head or bearing 21 carried by a stationary bracket 22. The rod 20 is turned by a hand wheel 23, as shown.

Each band sawing machine comprises a lower transverse driving shaft 24, (see Fig. 7), journaled through a stationary bearing 25, and having a lower wheel 26, rigidly secured to one end thereof. The shaft 24 receives its rotation from a pulley 27, rigidly secured thereto and driven by a belt 28, which also engages a pulley 29, secured to the armature shaft 30 of a motor 31. The operation of the shaft 24 is controlled by starting or stopping the motor by means of the usual switch (not shown). The tension of the belt 28 is regulated by the wheel 32, carried by a pivoted arm 33, as shown.

As more clearly shown in Fig. 7, the numeral 34 designates a brake device, adapted to engage the inner side of the pulley 27. This brake device is carried by the bell crank lever 35. pivoted at 36, to an upstanding bracket 37, carried by the bearing 25.

The bell crank lever 85 has one end thereof bent into the form of a cam 38 and arranged in the path of travel of a member 39, which is rigidly mounted upon a guide rod 40. This guide rod is mounted to slide within apertured cars 41, attached to the bracket 37. The member 39 is rigidly connected with an arm 42, which is connected with a reciprocatory transverse rod 43, operating within apertures 44, formed in the frame 17, as shown. The rod 43 is provided at its forward end with a knob i5 arranged upon the forward side of the machine, as clearly illustrated in Fig. 1. From the foregoing description it is obvious that when the rod 43 is moved rearwardly the member 39 will trvel into engagement with the cam 38, forcing the same downwardly and thereby swinging the bell crank lever upon its pivot and bringing the brake device 3st into clamping engagement with. the inner surface of the pulley .27.

Each band sawing machine further comprises an overhanging arm 46, having suitable slidable engagement or connection with the up er end. of the frame 16 or 17. The overhanging arm 46 is raised or lowered by proper manipulation of an adjusting screw 47, having swiveled connection therewith and screw-threaded engagement within a bracket 48, rigidly secured to the upper end of the "rame. The screw 47 is turned by a hand wheel a9, attached to the lower end thereof.

Arranged above the overhanging arm 46 is a transverse hearing 50. carried by an arm 51, which is pivoted to the upper end of a supporting member 52, having its lower end secured to the arm 46. It is thus apparent that when the outer end of the arm 51 is swung downwardly, the bearing will be elevated. Engaging the. outer end of the arm 50 is a link or connecting member 54, engaging a lever 55, having a weight 56, adjustably mounted thereon. The forward end f the lever is provided with a notch for the reception of a pin 57 secured to the overhanging arm 46. It is thus apparent that the weight 56 and associated elements serves as yielding means to move the bearing 50 upwardly.

Rotatably mounted upon. the shaft 50 is an upper wheel 58 engaged by a band saw 59, also engaging the lower wheel 26. This band saw operates within and through guide devices 60 and 61, shown more clearly in Fig. l.

The band sawing machine herein above described is old in the art and no claim made to the same 7267* so, a similar construction being shown in United States Patent No. 877,12t. granted to Lafayette G. Robinson and Louis J. Hanhart, under date of January 21, 1908. The means for adjusting one band sawing machine toward and away from the other for the purpose to be hereinafter described, however, apparently novel and is not shown in this patent.

My invention resides principally in the provision. of means for advancing the boards or work into proximity to the band saws 59. Such means comprises a preferably annular horizontal carriage 62. provided upon its lower face with spaced annular flanges 63 and 6st, (see Figs. 6 and 13,) for providing an annular passage or channel (35 and an annular recess 66. The annular carriage 62- is supported by means of a plurality of wheels or rollers (37 (see Figs. 1, 2-, and 0). These wheels 6'? extend into and operate within the annular groove or channel 65. The wheels (37 are pivotally mounted within the forked ends 68 of supports 69, carrying sleeves 70, which are longitudinally adj ustably mounted upon horizontal rods 71. The lOdn 71 are connected with stationary standards 72,

as shown. In Fig. 3, I have shown three of the wheels 67 and associated elements. equidistantly spaced but it is understood that any suitable number of the same may be employed. lltrranged intermediate two of the wheels 6'? is a wheel 73, (see Figs. 1 and 4) carried by a bracket 74:, secured to the stationary framelG. The wheel 73 also operates within the annular channel or groove 65.

Means are provided to properly guide the annular carriage 62 in its rotatable movement, comprising horizontal guide wheels 75, carried by supports 76, provided with sleeves 77, which are longitudinally adjustably mounted upon the rods 71 and may be clamped thereto in adjustment at desired positions. Arranged near the wheels 73, (see Fig. 4) are guide wheels 78, carried an arm 79, which is rigidly connected with a plate 80. This plate is provided with elongated slots 81, receiving bolts 82, carried by a portion of the frame 16. It is thus apparent that the guide wheels 78 are adjustable with respect to the carriage 62. and cooperate with the wheels 75 in properly guiding the carriage during its rotation. The function. of having the supporting and guide wheels for the carriage readily adjustable with relation thereto, is to provide means whereby the same may be employed in connection with annular carriages of clifferent diameters and thicknesses.

As clearly shown in Fig. 1, band saws 59 are disposed upon opposite sides of the carriage 62, and by having the frame 17 adjustable toward and away from the frame 16, a carriage of different width may be arranged between these loand saws.

As more clearly shown in Figs. 6 and 3, an annular gear 83 is arranged within the recess 66 and held therein by screws 8% or the like. preferably flush with the corresponding edge ofthecarriage 62,-whereby they cannot project beyond the carriage and injurethe saw by contact therewith. Arranged to engage with the annular gear 83 is an intermediate gear 8 1 :(see Figs. 4. and 6 which is pivotally mounted upon one end of a bellcrank lever ,85. The bell-crank lever-.85 is. pivotally mounted upon a vertical shaft 87..

This bell-crank lever carries a bolt 88, operating within elongated slot 89,;formed in a stationary plate ,90, whereby the same .is adapted to clamp the bell-crank lever in adjustment at the desired position, 7 The gear 84 receives its rotation from a gear 91, rig,-

idly connected with theupper end of the shaft 87,.and this shaft is journaled through a bearing 92. The shaft 87, as shown in Fig. 2, extends downwardly and has a clutch member 93 splined thereon and adapted for coaction with a clutch member 94, which is rigidly secured to a vertical driving shaft 95 ;(see Fig. 5). The shaft87 is separate from the shaft 95. Rigidly mounted upon the shaft 95 isa worm wheel 96, arranged withina gear casing, 97, and driven by a worm 98. This worm is formedupon a, shaft 99, receiving its rotation from apulley 100. The pulley .100 is driven.

by a belt 101, engaging a pulley'102, which is rigidly mounted upon the shaft 24.;

It is thus apparent that when the-clutchelement 93 engages the clutch element 94 the,

rotationof the shaft 24 will be imparted to the shaft 87,. which will in turn drive the -an-z nular' carriage 62. The clutch element-93is provided with a collar 103, having an amin lar groove for receiving the forked end 104 of a vertically swinging piv0ted'lever105,

provided at its forward end with a pedal 106, arranged upon the forward side of the machine. It is thus apparent that when the operator depresses the pedal 106 the lever 104 will be swung upon its pivot and the clutch element 93 brought out ofengagement with the clutch element earmstopping the rotation of the carriage 62.

Means are provided for holding or clamping the boards or work upon the annular carriage 62, comprising coacting holding devices 106 and 107. Eachholding device 106 comprises a block 108, which is screwed or otherwise rigidly connected with a care riage 62. Longitudinally adj ustably mount ed upon the block 108 is a blade 109, having teeth 110, to engage the end of the board. The blade 109 has longitudinal-slots 111, to engage clamping bolts 112.

The co-acting holding device comprises a frame 113, provided with a -trans-.

verse opening 114. This frame is rigidlyse cured to the rotatable carriage. Mounted to .slide upon the frame 113 is a plate ll iflhav The teeth of this annular: gear are in'g teeth 115,1 to engage the end ofthe board and an upstanding flange 116 at itsopposite end. This upstanding flange is moved in one direction by a spring 117. The plate ll iis moved toward the board bya cam 118, pivoted to the frameat 119. The cam 118ri's'turned by means of a handle or crank 120, as. shown. 1'

The operation of theapparatus is as follows The' boards are clampedto the rotatable annular carriage 12, as above indicated, and the motor 31 started The operation of the motor will'rotate the annular carriage 62,

which in turn win feed theboards'toward the saw teeth ofthe band saws 59. These band saws rotate in opposite directions, so that the inner portions thereof which engage the boards, traveldownwardly, as indicated by the arrows.

The supporting and guiding means for thefannular carriage 62 are radially adjustable with respect thereto, whereby carriages, of different sizes and diameters may be employed. One band saw is adjustable toward and away from the other band saw, so that the same may properly function, if the cross sectional area of the annular carriage is varied.

It is to be understood that the form of pair of supports, an approximately annular approximately horizontally arranged carriage to operate between the band saws and carried by the adjustable supporting means 7 and adapted to be removed therefrom whereby a carriage of different diameter may be substituted therefor, means to adjustfthe supporting means radially of the annular carriage, and means to rotate the annular carriage and adjustable approximately radially with relation to the carriage. I

2. In a machine of the character described, the combination with approximately radially extending guide members suitably supported" in an approximately horizontal position, supporting elements longitudinally adjustably mounted upon the guide members, an

approximately annular approximately horizontally arranged carriagecontactingwith the supporting elements and adaptedto be removed therefrom whereby an annular carriage of different diameter may be substituted therefor, and saw means operating in proximity to the carriage.

3. In a machine of the character described, the combination with approximately horizontal approximately radial guide members, supporting elements longitudinally adjustably mounted upon the guide members, guide elements longitudinally adjustably mounted upon the guide members, an approximately horizontal approximately annular carriage arranged upon the supporting elements and having its periphery contacting with the guide elements, said carriage being adapted to be removed whereby a carriage of difierent diameter may be substituted therefor, means to drive the carriage and adjustable approximately radially of the carriage, and approximately vertical operating sawin means disposed in proxim it to the carriage.

a. In a machine of the character described, traveling support to receive a board or the like thereon, a relatively stationary clamp connected with the traveling support, a bracket connected with the traveling support and spaced from the relatively station ary clamp, a reciprocatory clamp mounted to operate within the bracket, means to move the clamp and lock the same in adjustment at a desired position, and cutting means disposed near the traveling support,

5. In a machine of the character described, a traveling support to receive a board or the like thereon, a relatively stationary clamp connected with the traveling support, a bracket connected with the traveling support and spaced from said clamp, a reciprocatory clamp mounted to operate within the bracket, a spring to move the reciprocatory clamp in one direction, a cam pivoted to the bracket to move the reciprocatory clamp in an opposite direction, and cutting means disposed near the traveling support.

6. In a machine of the character described, a support, a removable annular carriage arranged near the support, supporting rollers for the carriage adjustably connected with the support and adapted for movement radially of the annular carriage, guide rolls contacting with the edge of the annular carriage and adjustably mounted upon the supportand adapted for movement toward and away from the carriage, an annular gear secured to the annular carriage, gearing to engage and drive the annular gear and adjustable toward and away from such annular gear, and cutting means disposed near the annular carriage.

7. In a machine of the character described, a support, a removable annular carriage arranged near the support and provided upon its lower side with a pair of annular grooves, supporting rollers for the carriage operating within one annular groove and adjustably connected with the support for movement inwardly and outwardly with relation to the annular carriage, guide rollers arranged to contact with the outer edge of the annular carriage and adjustably connected with the support for movement toward and away from the annular carriage, an annular gear secured Within the outer annular groove of the annular carriage, gearing engaging the annular gear and adjustable toward and away from such annular gear, and cutting means arranged near the annular carriage.

8. In a machine of the character described, a pair of supports, cutting elements carried thereby, a removable annular carriage ar ranged to operate between the cutting elements, supporting means for the removable carriage and adapted to be adjusted in a substantially horizontal plane inwardly and outwardly with relation to the carriage and adjustable approximately radially of the can riage, means to drive the carriage, and means for shifting one support toward and away.

from the other support.

9. In a machine of the character described, a pair of upstanding supports, vertically operating band saws carried by the supports, means to shift one support horizontally toward and away from the other, supporting means, a horizontal annular track surrounding one upstanding support in an eccentric manner and having its material operating between the band saws, said annular carriage being removable for the replacement of the annular carriage of dilterent diameter when the adjustable support is shifted horizontally away from the stationary support, and means to drive the annular carriage and adjustable approximately radially of the same.

10. In a machine of the character described, as a sub-combination, a horizontal annular track, an annular gear secured to the outer edge of the track, a vertical driving shaft arranged near and outwardly of the outer edge of the annular track, a bell-crank lever pivoted at its apex upon the upper end of the vertical shaft, a gear pivoted to the inner arm of the bell-crank lever and engaging the annular gear, a second gear rigidly secured to the upper end of the vertical shaft and permanently engaging the last named gear, means to lock the bell-crank lever in adjustment at a desired angular position, and means to rotate the driving shaft.

11. In a machine of the character de scribed, the combination with a plurality of vertically arranged supporting rollers, of a horizontal annular track provided-upon its outer side with an annular vertical groove to receive the vertical rollers and having an outer vertical groove, horizontal guide rollers contacting with the periphery of the annular track above the outer annular groove, an annular gear held within the annular groove, a vertical shaft disposed near and outwardly of the annular carriage, a bell-crank lever pivoted upon the upper or- 5 tion of the vertical shaft with the shaft projecting above the same, a gear rigidly secured to the upper end of the vertical shaft,

a second gear pivoted to one arm of the bellcrank lever and permanently engagin the 1 last named gear and adapted to be shifted into and out of engagement with the annular gear, means to lock the bell-crank lever in adjustment at different angular positions, and means to drive the vertical shaft.

In testimony whereof I atfix my signature 15 in presence of two witnesses.

FOSTER F. RUDY. Witnesses:

W. H. WOLFE, M. LYTLE.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. 0. 

